Lasers As Fast As Possible

From epic space battles to the checkout counter at your local big-box store, lasers are everywhere...
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[@gcraneorigami]

Linus As Fast As Possible

[@nictheperson6709]

More like LinusTechTips or Linus Media Group as fast as possible.

[@polpottopg]

I genuinely would like that video to exist like if he explained what he does on youtube and how he did it

[@ConstantlyRushing]

+Gavin Crane *seizure*

[@khurramshazada4431]

LOL

[@raul7574]

+HyphenSam You deserve more likes.

[@LautaroQ2812]

Yadda yadda yadda I'm not happy until lightsabers are a thing. I'll be dead for sure by then, but still... Gotta believe.

[@ThereIsNoMatch]

+Lati Sullivan Lightsabers are not lasers, they're condensed cylinders of liquid plasma held in place by a strong magnetic field. Possible? Yes. Plausible? No, not yet. We need cold fusion first.

[@LautaroQ2812]

ThereIsNoMatch I know they're not lasers but I don't usually find myself in the middle of a "liquid plasma held by magnetic fields" conversation/video/post :P I guess I should've said "Blasters" instead, that would've been more accurate?

[@LautaroQ2812]

***** I'd actually would hang out with him.

[@ThereIsNoMatch]

Lati Sullivan Ehh, yeah. Still requires cold fusion to even approach the power needed, not to even mention heat dispersion...

[@ThereIsNoMatch]

***** no, not really. I just have a friend who I've argued with about star wars tech on and off for about a year now.

[@VezixHaikal]

since linus talk about laser , nothing is impossible LINUS PLEASE EXPLAIN ABOUT CATS AS FAST AS POSSBLE

[@marcusl5605]

+Vezix Haikal That should be covered in LinusCatTips.

[@j3i3m333]

How about digging in the architecture of CPU's and GPU's. I don't mean in general, i mean like taking the Haswell and dissecting it for the layman. Advantages with this technology as opposed to previous ones and limitations based on architectural design.

[@srivastava767]

+Jammy De Sir, to the top. That would make a great topic

[@vapenation7061]

+paritosh srivastava Agree

[@LazerLord10]

I approve of this video.

[@TheHoaxHotel]

The laser shark revolution is imminent.

[@joekromer8387]

+The Hoax Hotel gggggggggggggggggggggggggggggggggggggggggg

[@Kostas_Ountsis]

that instagram scammer got rekt

[@HudsonGTV]

_I just wanted sharks with freakin' lasers on their heads!_

[@KabukeeJo]

Lasers also make Ninjas 200%+ more effective than Ninjas without Lasers.

[@tchitchouan]

metal gear rising

[@martinxXsuto]

there may be active IR sensors in the area. factory security no doubt, but the enemy may be using it

[@StrokePlay]

In my Gen Chem. class the other day we were talking about lasers and I appreciate this video to help me understand more. What a coincidence!

[@CocoaNutCakery]

Albert Einstein won the Nobel Prize in Physics for his work on the photoelectric effect, not relativity. Not only that, but his paper on relativity was rejected for his doctoral thesis (it was considered to be "a little uncanny") and he didn't get his doctorate until he wrote his paper on the photoelectric effect.

[@srivastava767]

+CocoaNutCakery People like you who actually know stuff are becoming a rarity on the internet these days.

[@Jakeski87]

+paritosh srivastava really? I seen fact checkers everywhere, especially on channels that are based on informing people. I would check his statement as well.

[@alikhoobiary6595]

Then they should have kept turning him down.

[@NicolSD]

Laser printers as fast as possible.

[@davidcox2459]

They already have a printers as fast as possible and a inkjet vs laser printers as fast as possible.

[@nermind02]

I got back to this video 5 years later. Thank you for the video, helped me understand lasers!

[@monkey6430]

Like the new contrast, keep up the great work.

[@discotechwreck]

This was a really interesting and informative TechQuickie! 👌

[@sammymorini9748]

"As Fast As Possible" As Fast As Possible.

[@Feynstein100]

Next: String theory as fast as possible. Also: "Red lasers are the most readily available ones." Well played, Linus.

[@jamesm66]

Small correction, the gain medium does not have to be pumped by light. For instance in gas lasers you pass a current through the gas and in diode lasers (the most common type of laser) you pump electrons into the i region of a p-i-n diode. Also when light is used for pumping it does not have to be flashed and it can't be if you want a continuous wave rather than pulsed laser.

[@blu4able360]

LASER stands for Light Amplification by Stimulated Emission of Radiation. Thanks Linus.

[@davidsonmg]

Good video, but I'm surprised you didn't say that L.A.S.E.R. is an acronym for: Light Amplification by Stimulated Emission of Radiation.

[@Xnoob545]

LAbSEoR Lahb-see-ohr

[@betaneptune]

Excellent description of how a laser works, and you added that the basic operating principle was discovered by Einstein in 1917! Pretty good.

[@daskalman]

hey Linus, I love and watch all you "fast as possible" videos, and was wondering if you can make a video describing the difference between mobile CDMA and GSM networks. Thank you for all your hard work!

[@TVperson1]

Can you make a Linus Sebastian Explained! video?

[@Energyone]

"Let's say you're not looking to take on Uber tomorrow but you want to try out Brain'F'REE" uh, whoops.

[@Irixion]

LinusScienceTips.

[@stx_hitta332]

We need to go as fast as the speed of lasers and I mean space

[@Alyta99]

Laser stands for "Light Amplification by Stimulated Emission of Radiation"

[@Sonicbolt456]

"I just want sharks with frickin laser beams attached to their heads"

[@zaydabbas1609]

Most lasers nowadays are semiconductor lasers, using p-type and n-type to drop the energy level of an electron to emit a photon. And pulse lasers go up to a petawatt but pulse so fast they just vaporize the first layer of the target, rather than penetrating it.

[@JoBoy78]

Was on LTT for years and I just discovered this channel yesterday. .wow I'm old

[@srivastava767]

+Joseph Peter De mello I welcome you to techquikie , where the accuracy of the info they provide keeps decreasing with each video.

[@luxkstn]

The sponsors are strong with you, linus.

[@ronettreker]

Most comercial lasers today are laser diodes. They use a special form of LED that emmits light at specific angles which are then made paralel (collimated) using a lens. They are cheaper, more compact than traditional lasers but are no were near as powerfull as traditional lasers.

[@kg4boj]

+ronettreker Define a "traditional laser" for us would you? I happen to have a fiber coupled 50W IR laser diode right here on my desk, runs fine off a couple D cell batteries, I also have a slightly larger 150W laser diode (it can cut metal) would you consider a 150W laser "not powerful" ,not I. BTW a laser diode is NOT a "special form of led" Their construction is very much different.

[@ronettreker]

+Peter Crackpot Pete Carlson By traditional lasers I mean gas lasers which are pumped using gas discharge, dye lasers and solid state lasers like the ruby one shown by Linus which are pumped optically. A laser diode is basically an LED whith and intrinsic gain medium between the positive and negative semiconductors. It's not identical to a normal LED, that's why I called it "a special form of LED". Because of their design laser diodes produce divergent light so they need a collimating lens. Also, because it's a LIGHT EMITING DIODE (Semiconductor device that emits light using a P-N junction) it can fail more easily due to overheating and overpowering. Gas and solid state lasers can be more powerfull as they can be more easily cooled. Also some traditional lasers can be pulsed at high power, something that you can't do with laser diodes as they would fail due to over-voltage. No, 150W is not that powerfull since gas lasers and optically pumped lasers can go beyond 1KW. Laser diodes are more efficient that traditional ones though, that's why you can run them using a few D cells.

[@gwiber]

Your atom graphic was missing an electron...

[@qasw1234]

+Gwiber WurmChild it's inaccurate anyways

[@5iwot5]

awesome video Vsauce!! keep it up!

[@truthfilterforyoutube8218]

2 QUESTIONS; what is embedded video how does it apply. and second question. I see scaling options in my nvidia control panel as well as euro trucking simulator 2 graphics settings. They are both expressed as percentage options. What exactly does this do and is it good for video capture or frame rates.

[@bullseye6763]

3:38bitch SPACE STATION, i did a breath hold and now there is "$pace FORCE"

[@subliminalvibes]

The sharks weren't ill-tempered, the Sea Bass were!

[@DeadWaste2]

Different colors are not different in price. It is the material and the thing you want to to with it which sets the price, not the color. Facts like pulse length, repetition rate, bandwidth are more interesting. There are also withelight lasers, there you can choose the color yourself ;)

[@philippoMC]

what you explained was one type of laser, a yag-laser. these are only very rarely used, most of the time other technics are used

[@xIconikkxGaming]

"Turn The Moon Into, I Don't Know... A SPACE STATION!" Lol That Was Great!

[@joof8342]

Fun fact: LASER stands for Light Amplification by Stimulated Emission of Radiation

[@jillmiranda07]

I'm not from the UK but for a second there I felt like you were flipping me off...

[@Cronay]

I like that this Episode are drifting more and more in the direction of science.

[@seyfo03]

Turkey made this year a laser weapon on their warship. They can take out targets from a far distance even if it's very small.

[@Crlarl]

Frickin' laser beams, man...

[@tupac1996rip]

so... no mention of lasers being used for fusion? :(

[@56independent42]

"Lasers: As Fast As Possible", yeah that's what light does.

[@Skullboy264]

I want sharks with FRICKIN laserbeams attached to their heads!

[@brosefph]

You messed up one of the major components of how a laser works. It's not excited by a short flash of a lamp (any more). The optical laser you described is pumped with another laser at a different wavelength. Semiconductor lasers, like in laser pointers and regular consumer devices, are excited with a very high voltage which causes some electrons to jump up to higher energy levels. I believe the lamp mentioned is correct in the sense that it was used to pump the first laser, the ruby laser.

[@Pan_Z]

0:49 thank God it didn't quite turn out like that

[@1d1durem0m]

IMA FIRIN MAH LAZER

[@rushabhshah3667]

Apple pensil aka "The Revolutionary Pencil" as fast as possible

[@rhoharane]

You forgot to mention that "laser" is an acronym.

[@rhoharane]

How is that before? That's from 2004.

[@techtron2376]

+rhoharane Same goes for Radar and Sonar

[@MedalionDS9]

Sharks with frickin laser beams

[@10ToesDownWithBass]

lasers also effective at driving cats insane

[@Reemuson]

*Dr. Evil*: You know, I have one simple request. And that is to have sharks with frickin' laser beams attached to their heads! Now evidently my cycloptic colleague informs me that that cannot be done. Ah, would you remind me what I pay you people for, honestly? Throw me a bone here! What do we have? *Number Two*: Sea Bass. *Dr. Evil*: [pause] Right. *Number Two*: They're mutated sea bass. *Dr. Evil*: Are they ill tempered? *Number Two*: Absolutely. *Dr. Evil*: Oh well, that's a start

[@rzeka]

Light Amplification by Stimulated Emission of Radiation - thanks, Nightmare in Dreamland!!

[@itsdeonlol]

Tasers As Fast As Possible.

[@carlrasmussen843]

That moment when you have the shark laser pointer that Linus shows.

[@RanTutorials]

Even the advertisements Linus does are pretty helpful to the consumer, its a shame I can't say that about other channels

[@DamienMrtl]

linus hair as fast as possible

[@AndrewStorlie]

laser only over heats if you dont have a good heat sink. i have laser that i build that has a light out put a little over 3 watts and i will light anything on fire or melt your skin. its a 445nm wavelength so its a deep blue color. runs of a pair or 18650s.

[@Ragingwasabi9000]

+Andrew Storlie drawing the heat away doesnt eliminate the fact that its producing the heat.

[@AndrewStorlie]

+Mr Ching “chicho” Chong well the way he worded it mean too much heat, thus over heating.

[@lammatt]

people learn LASER in 3rd year physical chemistry course in university. this video misses the most crucial parts of allowing laser to occur: - the population inversion - the meta stable state

[@serafimov676]

Electrons rub each other to get exited and emit photons. So basically, laser is a large electron orgy.

[@cyancoyote7366]

Keep. Spamming. 9. IT'S SO HILARIOUS!

[@MnMclassic]

The photons will have equal angle and phase, in the complex dimension, they will not be identical in the real world. This simply means you get light with the same frequency and thus the same color of light.

[@lokdabest]

lasers as fast as possible: the end

[@MazeFrame]

Disks are comming back as delivering 4k footage to living rooms is still hard to do in many places.

[@YoussefAmoun]

Lightsabers as fast as possible

[@MasterGeekMX]

IMMA FIRIN' MAH LAZOR

[@ElectricShock89]

"your frickin evil lair" Was I the only one who got the reference when he mentioned the sharks?

[@ABitOfTheUniverse]

KZbin needs a Turnip button.

[@j97n75]

+eh macarena Oh dear God, noooooo!

[@nictheperson6709]

Turnip as fast as possible.

[@sferrin2]

Dude, how many channels are you on?

[@yaseenalsaif3785]

Still waiting for the Surface Book review :\

[@bikutoso]

I have gotten my share of red lasers in my eyes by accident the last half year. At least it is better than the infrared calibration setup that was used before. At least i know when I'm standing in a spot where the laser is pointing in my eyes with the red laser.

[@Asbjorn34]

Hey Linus! (and youtube commenters) I am really wondering which way my case fan (i think) should blow air. Should it blow air out from my case or should it blow air in my case? Hope you guys can help. :)

[@UniverseGOD2525]

I'm sure cats around the world disliked this video.

[@thesixsamurai360]

What Joules of electricity, how to measured?

[@IMMORTALGODXXXX]

linus is too smart

[@TheAllProNoPro]

2:21 I see what you did there Linus, RED being more REaDily available oh you are so subtle nowadays

[@Idogamingonps]

I love lasers but you know what i love more.. knowledge

[@asdjesdsd]

wormholes, time travel, time relativeness, the treads/layers of reality theory aFAP that interestellar movie hell

[@nicokulmann8398]

so if a laser gun was made that was stupid powerful the geneva conventions would be cool with it? damn.

[@pokemon555222]

I have a laser which is scary as it is so powerful. The beam is visible in day light and burns stuff instantly.

[@TheMaccywaccy]

Can you please do a motherboard fast boot video and explain how it works

[@EKSBEntertainment]

1:57 Linus is the light a tad hot your sweating here even tho its almost 2 years old.

[@mersa316]

The Austin Powers reference...

[@theyluvloki]

Fire pole As Fast As Possible

[@MetallF]

Linus, you're drunk making science shows and all. Soon we'll see a colab with SciShow

[@killer121l]

linus physic tips

[@75randomdan75]

You missed one more drawback of a laser weapon. The fact that anything in the air can disrupt them. A laser wont work on a foggy or rainy day for example.

[@stolenmuppets9099]

Absolutely. Another serious drawback is that it would be relatively cheap to develop some kind of protective coating that would require enormous amounts of power to burn through in any reasonable amount of time.

[@FreakyDudeEx]

lol nice entrance to the topic

[@SuperAllstar64]

nice video

[@Longshotsz]

Laser = light amplification by stimulated emission of radiation

[@charlesfair3382]

freakin lasers on sharks

[@Pawgasm]

I want Linus to teach my Physics classes. :D

[@DiraNightcore]

Einstein put the laser on the shark.

[@nictheperson6709]

Lasers may go fast, but I don't think they go as fast as possible.

[@joerichardson2278]

The first LASER wasn't actually a LASER at all, it was a MASER.

[@ac11dc110]

how many channels do you have?!!!

[@noahplenter7998]

Cool new stuff bra

[@sutanodetal]

lol i was doing something when the system froze. it said: *google play music is not responding, do you want to close it?* then after minutes it said: *system ui is not responding, do you want to close it?* then the tablet booted back to the Acer logo because the system crashed